[sympy] Slight change to Add gives infinite recursion on evalf

2015-11-08 Thread Duane Nykamp
I created an AddUnsort class that doesn't change the order of its argument. Now, I discovered I get an infinite recursion when I evalf. But, I'm having trouble figuring out how to prevent this infinite recursion. The still get the infinite recursion even with this stripped down class that doe

[sympy] Re: Determining Christoffel Symbols and Curvature Tensors for a Flat Sphere using SymPy.Diffgeom

2015-11-08 Thread Kalevi Suominen
On Sunday, November 8, 2015 at 5:45:44 PM UTC+2, Imran Ali wrote: > > I was a bit quick there. srepr(u) gives the following output : > > BaseScalarField(CoordSystem(Symbol('egg_carton'), Patch(Symbol('P'), > Manifold(Symbol('M'), Integer(2))), Tuple(Symbol('u'), Symbol('v'))), > Integer(0)) > >

[sympy] Re: Determining Christoffel Symbols and Curvature Tensors for a Flat Sphere using SymPy.Diffgeom

2015-11-08 Thread Imran Ali
I was a bit quick there. srepr(u) gives the following output : BaseScalarField(CoordSystem(Symbol('egg_carton'), Patch(Symbol('P'), Manifold(Symbol('M'), Integer(2))), Tuple(Symbol('u'), Symbol('v'))), Integer(0)) On Sunday, November 8, 2015 at 4:40:45 PM UTC+1, Imran Ali wrote: > > Hi Kalevi!

Re: [sympy] Re: Determining Christoffel Symbols and Curvature Tensors for a Flat Sphere using SymPy.Diffgeom

2015-11-08 Thread Imran Ali
Hey Aaron! Thanks for the tip, I posted the code on SO. But, I think that Kalevi solved the problem. I found the issue. On Friday, November 6, 2015 at 5:54:36 PM UTC+1, Aaron Meurer wrote: > > What you should do is post the complete code to stackoverflow, as you > have done here. > > Aaron Meu

[sympy] Re: Determining Christoffel Symbols and Curvature Tensors for a Flat Sphere using SymPy.Diffgeom

2015-11-08 Thread Imran Ali
Hi Kalevi! I got the following output from srepr : Symbol('u') Differential(BaseScalarField(CoordSystem(Symbol('egg_carton'), Patch(Symbol('P'), Manifold(Symbol('M'), Integer(2))), Tuple(Symbol('u'), Symbol('v'))), Integer(0))) I see now what the error is! My code used u as a sympy expression,

Re: [sympy] Beginner at open source .

2015-11-08 Thread Jason Moore
Try starting here: https://github.com/sympy/sympy/wiki/introduction-to-contributing Jason moorepants.info +01 530-601-9791 On Sun, Nov 8, 2015 at 4:34 AM, Daksh wrote: > Help me with open source contribution . Just a little push would be of > real help . > > -- > You received this message beca

[sympy] Beginner at open source .

2015-11-08 Thread Daksh
Help me with open source contribution . Just a little push would be of real help . -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com.

Re: [sympy] Writing Test cases in SymPy

2015-11-08 Thread Sumith 1896
Thanks Gaurav, I have done some minor changes and the page now resides here: https://github.com/sympy/sympy/wiki/Writing-test-cases-in-SymPy Regards, Sumith On Sun, Nov 8, 2015 at 2:38 PM Gaurav Dhingra wrote: > Thanks Jason, Aaron. I have made a new wiki page and added the text > written by A

Re: [sympy] Writing Test cases in SymPy

2015-11-08 Thread Gaurav Dhingra
Thanks Jason, Aaron. I have made a new wiki page and added the text written by Aaron here https://github.com/sympy/sympy/wiki/Test-Case-Writing-in-SymPy Gaurav(gxyd) On Thursday, November 5, 2015 at 10:10:57 PM UTC+5:30, Jason Moore wrote: > > Thanks Aaron. Someone should copy this to a wiki pa